Calculations of the impact of friction and wear on energy consumption, economic
expenditure, and CO 2 emissions are presented on a global scale. This impact study covers …

Areal 3D analysis of surface texture gives more opportunities than a study of 2D profiles.
Surface topography evaluation, considered as 3D dimensional analysis in micro or …

In typical metallic contacts, stresses are very high and result in yielding of the material.
Therefore, the study of contacts which include simultaneous elastic and plastic deformation …

Definitions of soil particle sphericity, roundness and roughness have existed since at least
the 1930s. In the 1950s, charts of typical sphericity and roundness values were developed to …

Contact mechanics has its application in many engineering problems. No one can walk
without frictional contact, and no car would move for the same reason. Hence contact …

Roughness measurements by optical interferometry and scanning tunneling microscopy on
a magnetic thin-film rigid disk surface have shown that its surface is fractal in nature. This …

Recent research has led to a deeper understanding of the nature and consequences of
interactions of materials on an atomic scale. The results have resonated throughout the field …

In this paper a fractal permeability model for bi-dispersed porous media is developed based
on the fractal characteristics of pores in the media. The fractal permeability model is found to …

In this paper, a unified model for describing the fractal characters of porous media is
deduced. The theoretical predictions from the proposed unified model are compared with …

Friction, wear and lubrication between materials in contact are of fundamental importance in
many pure and applied sciences. Owing to the development of experimental and computer …